scotopic vision vs twilight vision

scotopic vision and twilight vision both are nouns.

Word	Noun	Adjective	Verb	Adverb
scotopic vision	Yes	No	No	No
twilight vision	Yes	No	No	No

As nouns, scotopic vision and twilight vision are synonyms defined as:

scotopic vision and twilight vision: the ability to see in reduced illumination (as in moonlight)

Other synonyms of scotopic vision include night-sight, night vision.

scotopic vision (noun)	twilight vision (noun)
the ability to see in reduced illumination (as in moonlight)	the ability to see in reduced illumination (as in moonlight)